<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title></title>
    <style>
      html, body {
          margin: 0;
          padding: 0;
          width: 100%;
          height: 100%;
      }
    </style>
  </head>
  <body>
    <div id="app"></div>
  <script src="/main_window/index.js"></script></body>
</html>
